I NEED HELP ON THE INFORMATION REGARDING THIS BOOK PAGE 90. THE SCALE DRAWINGS OF THE 3.7CM GUN INDICATES THAT THE DRAWING ARE AT 1/50 SCALE. IT SEEMS TO ME THAT IT IS AN ERROR AND DRAWING SEEM TO BE AT 1/25 SCALE. CAN ANYONE CONFIRM THIS AS I AM WILL BE SCRATCHBUILDING THIS GUN IN 1/35 BUT I AM NOT SURE WHAT SCALE DRAWING IS. YOUR HELP IS GREATLY APPRECIATED.